French President Emmanuel Macron's centrist party looks poised to score a decisive victory following Sunday's second round of parliamentary elections, voting projections suggest.

Macron's La Republique En Marche party and its political ally, the Mouvement Démocrate (MoDem), are likely to win between 373 and 403 seats in the 577-seat lower house, according to forecasts from CNN's French affiliate BFMTV.

Advertisement

That margin of victory would give Macron, a pro-European centrist, the large majority he craves to further his political revolution -- and would inflict a further blow on the country's traditional ruling parties. The conservative Les Républicains and their allies trailed with about 107 to 127 seats, according to BFMTV.

The center-left Socialist Party and their allies are projected to win only 30 to 35 seats. Party leaders began reacting to the projected results soon after polls closed closed Sunday evening.

"This evening despite an alarmingly low turnout, the triumph of Emmanuel Macron is indisputable, the defeat of the left is unavoidable, the defeat of the Socialist party is without appeal, the right is facing a real failure," said Jean-Christophe Cambadélis, the leader of the Socialist party.

François Baroin, the leader of Les Republicains, also remarked on the low turnout.

But he told BFMTV that Macron was "the artisan of this victory" and wished him success.

Macron's party, founded just a year ago, won the first round of elections on June 11 with less than half of eligible voters going to the polls.

Turnout again looked set to be low for the second round. Nationwide, it stood at just over 35% as of 5 p.m. local time (11 a.m. ET) on Sunday, France's Interior Ministry said on its website -- significantly down compared with the same time in the 2012 election.

Macron won the French presidency last month without the support of a traditional mainstream party, as his newly minted En Marche! movement helped carry him to a convincing election victory over far-right candidate Marine Le Pen.

How the elections work

To win a seat outright in the first round of voting, candidates had to win more than half of the votes, which must account for at least a quarter of the registered voters.

If no single candidate managed to achieve that target, then all candidates who won at least 12.5% of registered voters advanced to the second round. The winner from the second round will then advance to Parliament.

According to BFMTV, more than 1,000 candidates ran in Sunday's elections.

First-round results

La Republique En Marche and the Mouvement Démocrate -- won a combined 32.3% of the vote in the election's first round. The established Les Républicains trailed with 15.8% of the vote.

Both the Republican and Socialist parties, which have traditionally governed during the time of the Fifth Republic, struggled with turnout.

Le Pen's right wing Front National party garnered 13.2% of the vote in last Sunday's first round and is expected to take between one and four seats. Jean-Luc Mélenchon's far-left party will likely claim between 10-20 seats after accounting for 11% of the vote in the first round.

The newly-elected President is leading a country suffering from high unemployment, a stagnant economy and security worries. Macron is hoping to carry out the far-reaching reforms he promised during his campaign.